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Finding the Fourth Proportional to 111,652.34, 154,083.10 and 60,664.56

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Solution

The fourth proportional to 111,652.34, 154,083.10 and 60,664.56 is: 83,718.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,652.34 : 154,083.10 = 60,664.56 : x
  2. Step 2: Convert to fraction form
    111,652.34/154,083.10 = 60,664.56/x
  3. Step 3: Cross multiply
    111,652.34x = 154,083.10 × 60,664.56
  4. Step 4: Simplify right side
    111,652.34x = 9,347,383,464.94
  5. Step 5: Solve for x
    x = 9,347,383,464.94/111,652.34
  6. Step 6: Final answer
    x = 83,718.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.